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Porous alumina membranes with two - dimensional ordered arrangement have been prepared by the anodic oxidation.
采用阳极氧化法,制备了二维有序多孔氧化铝薄膜.
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Especially South Korea develops the tool bit with ordered arrangement which very popular in the market.
特别是韩国这一两年研发出来的有序排列刀头,在市场上很有竞争力.
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